Hex key



FIG. 1 is a perspective view of a hex key showing my new design;

FIG. 2 is a right side elevational view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a front elevational view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a left side elevational view thereof; and,

FIG. 7. is a rear elevational view thereof.

The ornamental design for ‘hex key’, as shown and described.